heliosphere

See also: héliosphère

English

Etymology

From helio- +‎ -sphere.

Pronunciation

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Noun

heliosphere (plural heliospheres)

  1. (astronomy) The region of space where interstellar medium is blown away by solar wind; the boundary, heliopause, is often considered the edge of the Solar System.
    • 2023, Martin MacInnes, In Ascension, Atlantic Books, page 397:
      The heliosphere isn’t really a sphere at all, more an elongated teardrop shape.

Hypernyms

Hyponyms

  • inner heliosphere
  • outer heliosphere

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Further reading

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